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Loans (Schedule of Loans Purchased/Sold During the Period) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]    
Purchases $ 1,209 $ 5,547
Sales 6,000 1,106
Commercial and Industrial Loans    
Financing Receivable, Recorded Investment [Line Items]    
Purchases 0 800
Sales 0 0
Commercial Real Estate Loans    
Financing Receivable, Recorded Investment [Line Items]    
Purchases 1,209 4,747
Sales $ 6,000 $ 1,106